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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

None of these
Same as
Higher
Lower

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and head of water
Speed, power developed and head of water
Speed and power developed
Discharge and power developed

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Hydraulics and Fluid Mechanics in ME
According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

flv²/2gd
flv²/gd
3flv²/2gd
4flv²/2gd

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

cohesion
adhesion
viscosity
surface tension

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Hydraulics and Fluid Mechanics in ME
The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly enlarged to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden enlargement is

(v₁² - v₂²)/2g
(v₁² - v₂²)/g
(v₁ - v₂)²/g
(v₁ - v₂)²/2g

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Hydraulics and Fluid Mechanics in ME
Water is a __________ fluid.

Newtonian
Real
Non-Newtonian
Ideal

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